Patents by Inventor Kaoru Hasegawa

Kaoru Hasegawa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5640216
    Abstract: Herein disclosed are a liquid crystal display device and a data processing device, which can have their frame portions reduced in area to reduce the size and weight by extracting the terminals of video signals to only one side of a liquid crystal display panel and by arranging a video signal line driving circuit substrate to be connected with the terminals, only at one side of the display panel.
    Type: Grant
    Filed: April 7, 1995
    Date of Patent: June 17, 1997
    Assignees: Hitachi, Ltd., Hitachi Device Engineering Co., Ltd.
    Inventors: Kaoru Hasegawa, Yoshio Toriyama, Naoto Kobayashi, Katsuhiko Yarita, Hironori Kondo, Masahiko Suzuki, Yoshihiro Imajo
  • Patent number: 5076351
    Abstract: In a heat pipe container having a working fluid enclosed therein, the container includes a container body in the form of a horizontal straight tube and having an evaporator portion, a heat insulating portion and a condenser portion as arranged from one end of the body to the other end thereof, and an upward hollow projecting portion provided on the condenser portion of the container body.
    Type: Grant
    Filed: July 17, 1990
    Date of Patent: December 31, 1991
    Assignee: Showa Aluminum Corporation
    Inventors: Masaaki Munekawa, Chuichi Takahashi, Kaoru Hasegawa, Koichiro Fukui, Yuichi Furukawa
  • Patent number: 4985698
    Abstract: An apparatus for driving a color display panel operating at a high frame frequency. The color display panel driving apparatus includes a line memory for storing data of 1/2 of a line at its odd-numbered addresses and then storing data of the remaining 1/2 of the line at its even-numbered addresses, a first column drive circuit including a shift register to which the data stored at the odd-numbered addresses of the line memory are supplied and which is connected at its bit outputs to column-direction signal wires associated with a left-hand half display area of the display panel, and a second column drive circuit including a shift register to which the data stored at the even-numbered addresses of the line memory are supplied and which is connected at its bit outputs to column-direction signal wires associated with a right-hand half display area of the display panel.
    Type: Grant
    Filed: October 25, 1988
    Date of Patent: January 15, 1991
    Assignee: Hitachi, Ltd.
    Inventors: Hiroyuki Mano, Terumi Takashi, Kazuhiro Fujisawa, Kaoru Hasegawa, Shinzo Matsumoto, Mitsuhisa Fujita
  • Patent number: 4934455
    Abstract: A plate-fin heat exchanger having two fluid channels. The first fluid channel is defined by two flat plates opposed to each other at a specified spacing, and a first channel forming member interposed between the flat plates. The channel forming member is in the form of an aluminum extrudate comprising a pair of right and left spacing side walls and a hollow connecting wall interconnecting the side walls and wavelike in the cross section of at least one of its upper and lower surfaces. The second fluid channel is defined by two flat plates opposed to each other at a specified spacing, a pair of spacing side wall portions provided therebetween and a fin member positioned between the side wall portions.
    Type: Grant
    Filed: May 27, 1988
    Date of Patent: June 19, 1990
    Assignee: Showa Aluminum Corporation
    Inventor: Kaoru Hasegawa
  • Patent number: 4804041
    Abstract: A plate fin heat exchanger having a first flow channel and a second flow channel which are formed by at least three flat plates arranged in parallel with one another at a predetermined spacing and opposed side walls provided between the adjacent flat plates. A platelike wall interconnecting the side walls is provided within at least one of the first and second flow channels and has a multiplicity of projections arched when seen from one side and formed by cutting the interconnecting wall and being projected upward and downward. Each of the arched projections is opposed to a fluid passage.
    Type: Grant
    Filed: May 13, 1986
    Date of Patent: February 14, 1989
    Assignee: Showa Aluminum Corporation
    Inventors: Kaoru Hasegawa, Shozo Uto, Suzushi Hashimoto